[1]Kishietal.[Chemicalandpharmaceuticalbulletin,1959,vol.7,p.515,516]
[2]Iten,PeterXavervon;Maerki-Danzig,Hana;Koch,Herbert;Eugster,ConradHans[HelveticaChimicaActa,1984,vol.67,#63,p.550-569]
[1]Maley;Plaut[JournalofBiologicalChemistry,1959,vol.234,p.641,643]Masudaetal.[Chemicalandpharmaceuticalbulletin,1959,vol.7,p.366]
[2]Iten,PeterXavervon;Maerki-Danzig,Hana;Koch,Herbert;Eugster,ConradHans[HelveticaChimicaActa,1984,vol.67,#63,p.550-569]
[1]MASUDA[Pharmaceuticalbulletin,1957,vol.5,#2,p.136-141]
[1]Nielsen,P.;Bacher,A.[ZeitschriftfurNaturforschung,B:ChemicalSciences,1988,vol.43,#10,p.1358-1364]